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(No Model.) 3 Sheets-Sheet 1.

J. THORP. HOT WATER HEATER.

No. 504,852. Patented Sept. 12, 1893.

Whine/was A avwamtoz 6% z W1 U 33:1 ably Kama (No Model.) 3 Sheets-Sheet2.

J THORP HOT WATER HEATER.

Patented Sept. 12 1893.

(No Model.) 3 Sheets$heet 3.

JQ TH ORP. HOT WATER HEATER- 'No.: 504,852. Patented Sept. 12, 1893'.

UNITED STATES PATENT OFFICE.

JOB THORP, OF WESTERLY, RHODE ISLAND.

HOT-WATER H EATER.

SPECIFICATION forming part'of Letters Patent No. 504,852, datedSeptember 12, 1893.

Application filed March 2'7, 1893.

To all whom it may concern.-

Be it known that I, JOB THORP, a citizen of the United States, residingat Westerly,Washin gton county, State of Rhode Island, have inventedcertain new and useful Improvements in Hot-Water Heaters, whichimprovements are fully set forth and described in the followingspecification, reference being had to the accompanying three sheets ofdrawings.

The object of my invention is to provide a device of comparativelysimple and cheap construction by means of which, when used in connectionwith a common lamp, small quantities of water may be readily and quicklyheated, such a device being especially desirable for use in the sickroom, in barber shops,

bath rooms and many other places where it is often desired to heatquickly small quantities of water and where other facilities forheatingthe same are not convenientlyat hand. To fully explain the same Ihave provided the annexed drawings.

Figure 1 shows an elevation of my device set up and ready for use; alampbeing shown in proper position in relation thereto. Fig. 2 is a similarview largely in central, vertical section. Fig.3 is a detached central,vertical, sectional view of the heater proper which consists of theshell and surrounding water j acket, (serving as a chimney for the lamp)and of the water chamber, hereinafter described, supported abovesaidwater j acketand through which water jacket and chamber the water fromthe tank circulates during the process of heating. Figs. 4, 5 and 6 aresectional views taken respectively on lines m m, yy and z-z of Fig. 3.Fig. 7 is a view of a slight modification of my invention.

My device consists of two principal oressential parts, viz., a watertank A which contains the water to be heated, and the heaterproperindicated as a Whole by the letter B, into and through which the waterfrom tank A passes during the process of heating. This heater iscomposed of thin sheet metal, or other suitable material, and the lowerportion of the same, a, is shaped substantially as a commonlamp-chimney. The chimney a supports on the upper portion of its outersurface a chamber or water jacket I) which encircles said chimney (seeFigs. 2, 3 and 6) and whose outer side wall 0 is concentric therewith;the top Serial No. 46 7,713. (No model.)

and bottom walls of said water jacket being indicated respectively byreference letters at and e.

The letter f indicates a circular chamber supported upon and above thewater jacket I) by means of a number of water legsg (here shown as fourin number), through which the water passes, during the process ofheating,

from said water jacket 17 into the chamber f as hereinafter described.(See Figs. 2, 3, and 5.) This chamberfis of a larger diameter than thetop of the water jacket I), and has a depending circumferential shell hwhich forms a. chamber beneath the water chamber f, open at its lowerend, and into which chamber 7.", the upper portion of chimney a andwater jacket b extend, (Figs. 2 and 3.)

It will now be understood that should the 70 heater 0. be placed inposition upon a lamp 0, as shown in Figs. 1 and 2, the products ofcombustion from the flame of said lamp will pass upward through thechimney a into the chamber In, heating during such passage the innerwalls of the water jacket b and the lower wall or bottom of the chamberf. The products of combustion are caused to deflect, by reason of saidlower wall or bottom of chamber f, and then pass between the describedwater legs 9 thereby heating the same, thence downward, following theouter wall of the upper portion of water jacket I), and thus heatingsaid upper portion of said outer wall and finally outward through theopen lower end of chamber It. By extending the bottom of the vessel fbeyond the periphery of the jacket I), a larger area is secured for theheat to act upon, and by providing the bottom of the vessel with a shell72., which is 0 preferably made cylindrical and of the same diameterthrough its length as the vessel f, the heat is retained a longer timeunder'the vessel than itwould be otherwise. It is then deflected downupon the top of the jacket,

with the chamber f. It will now be readily seen that when the heater andtank are properly assembled in relation to each other a' completecircuit is formed starting from the tank a and leading downward fromsaid tank through the pipe m, thence upward through the water jacket 5,the water legs 9 and the chamber f and, finally, through the inlet pipe72. back into the tank a. (See Fig. 2.)

When in use, the heaterB rests upon, and is supported by, a lamp ofcommon construction, the lower or chimney portion of said heater fittingsnugly down upon said lamp.

The tank or reservoir is here shown as supported on astandard d althoughother means could be employed for supporting the same, as shown in themodification of Fig. 7. The standard d of Figs. 2 and 3 is verticallyadj ustable, thereby making it possible to raise and lower said tank toaccommodate lamps of varying heights. Assuming now that we have a waterheater of the kind described, suitably supported, and assembled, andthat it is desired to use the same, the water to be heated is placed inthe tank A and it will be readily understood that it will at once flowfrom thence through the outlet pipe m and the inlet 12 and fill theWater jacket I), the water legs gand the chamber f, as clearly shown inFig. 2. The products of combustion, rising within the chamber a. fromthe flame of the lamp, at once commence to heat the inner wall of waterjacket b, the lower wall of chamber f, the water legs gand the up perportion of the outer wall of the said water jacketb as above describedand, consequently, commence to heat that portion of the water within theabove mentioned sections of the heater. The action of the heat upon thatportion of water within the heater B will cause such water to graduallyrise, the same flowing freely from the water jacket I) up the bottom ofthe tank into the heater and after becoming heated passing from saidheater back into the tank, as shown by arrows in Fig. 2, this operation,being continued until the same has reached the boiling point.

For convenience in drawing the water off from tank A I have provided thesame with a faucet p.

The chimney may if desired be provided with a small window of micawhereby the height of the fiame may be readily ascertained in order thatthe same may be regulated.

My device is extremely simple of operation and is of great convenience.

Having described my invention, I claim- In combination, a water tank, anannular water jacket, the inner wall of which is extended below thebottom of the jacket and forms a support and a chimney, a vessel above,and of a larger diameter than the jacket, the bottom of which vessel isprovided with a depending cylindrical shell which is of the samediameter throughout its length as the Vessel, and extends below the topof the jacket, a series of water legs connecting the top of the jacketwith the bottom of the vessel, and two pipes for connecting the vesseland the jacket with the top and bottom respectively, of the tank,substantially as set forth.

JOB THORP.

Witnesses:

LAFAYETTE L. FOSTER, CATHERINE A. GRIFFITH.

